Can grid



March s, 1927. 1,620,579

N. M. SMALL ET AL CAN GRID Filed Jan. 2l, 1926 gjm/vanto@ 5 Patented Mar. 8, 1927.

UNIFEM SFAFS PATENT OFFICE.

NORMAN M. SMALL ANI) LEON B'EEILER, JR., OF XVAYNESBORO, PENNSYLVANIA., AS-

SIC-NORS T0 FRCK COMPANY, 0F W'AYNESBORO, PENNSYLVANA, A CORPORATION OF PENNSYLVANIA.

CAN' GRID.

Application led January 21, 1926. Serial No. 82,788.

Our said invention relates to a can grid Vand particularly to means in connection therewith for supplying air to freezing cans for the purpose of producing clear ice.

Referring to the accompanying dra-wings which are made a part hereof and on which similar reference characters indicate similar parts,

Fig. 1 is a longitudinal section of the can grid,

Fig. 2, a detail of a fitting used at the end of the grid,

Fig. 3, a detail of another fitting used in said grid, and l Fig. 4, a detail of a modification.

The device of our invention is intended for holding a set'of cans while ice is formed in said cans and it is necessary to introduce air into the cans near the lower end thereof to cause the ice to freeze clear and without 4objectionable white portions. In the drawings reference character 1() indicates a side frame member of a can grid or basket provided with a pair of headers 11 extending from opposite ends of the grid approximately to the middle thereof, these headers being arranged to supply air to pipes 12 which may be flexible and which lead to the individual ice cans. The pipes 12 are supported at their ends remote from the headers by brackets 13 and are connected to depending pipes 14: for carrying the air to a point4 near the bottom of the respective ice cans.

At the outer end of each header 11 there is a supply pipe 15 connected to the header by means of a fixture 16 shown in detail in Figure 2 and comprising a corrugated neck 17 for attachment of the air supply pipe 15 and a smaller corrugated neck 18 for attachment of a pipe 12. rIhe fitting is attached to the side member 10 by means of screws 19 and is spaced from the header 11 by a gasket 20 having perforations register-- ving with perforations in the header and with the passages in the respective necks. A layer of insulation at 21 is interposed between the header and the side member 10 for protecting the header against freezing. At intermediate points on the headers a plurality of ttings 22 are secured to the side member 10 by screws 23, these brackets being each provided with a pair of necks 24 which may be duplicates of each other and which are provided with ribs or corrugations for holding pipes 12 securely in place thereon. lThese fittings are also separated from the header by packing members 25 similar to those shown at 2O in Figure 2 and are spaced from the side member 10 by means of the strip of insulation at 21.

ln Fig. 4 we have shown a header 11 similar to that of Figs. 2 and 3 and held by similar fittings, but completely surrounded by insulation 21.

It will be obvious to those skilled in the art that various changes may be made in our device without departing from the spirit of the invention and therefore we do not limit ourselves to what is shown in the drawings and described in the specification but only as indicated in the appended claims.

For example the insulation may in some cases be applied at all four sides of the header and in other cases only at three sides, the gasket 20 remaining as in Figs. 2 and 3.

Having thus fully described our said invention, what we claim' as new and desire to secure by Letters Patent, is:

1. The combination with a can grid for holding a set of ice cans in ice making machines, of a supply pipe extending along each end of said grid, an air header connected to each supply pipe and extending along one side of the grid approximately to the middle thereof, and pipes mounted in pairs in spaced relation along said header for supplying air to ice cans, substantially as set forth.

2. The combination with a can grid having side members for'holding a set of ice cans in an ice making machine, of a supply pipe disposed at each end of said grid, an air header connected to each supply pipe and extending inwardly substantially to the center of the grid, fittings disposed in spaced relation along each of said headers foi1 connection with pairs of pipes for supplying cans held by said grid, and insulating material between said fittings and said headers and between said headers and the side members of the grid, substantially as set forth.

3. In a can grid including a frame havy ing side members for holding sets of freezing cans, a plurality7 of alined headers attached to a side member of the grid frame and terminating in spaced relation, means at the outer ends of the headers for connection to a supply pipe, fittings mounted in spaced relation alongsaid air headers and having a plurality of connections for pipes leading to adjacent sets of freezing cans, substantially as set forth.

and twenty-six.

NORMAN M. SMALL. rLEON BUEHLER, JR. 

